unable to find a record in my db although it is present in my db-CodePudding

I'm using findOne() method to search through my db using the following code


    app.get("/articles/:articleId", (req, res) => {
       Article.findOne({ _id: req.params.articleId}, (err, foundArticle) => {
            if(foundArticle) {
                res.send(foundArticle);
            } else {
                res.send("No article found");
            }
        });
    });

using the following URL in postman

http://localhost:3000/articles/626e950e4fb74295f5139b78

and passing the object id for the following record in the DB


    {  
        "_id": "626e950e4fb74295f5139b78",  
        "title": "Albert Einstein",  
        "content": "Did you know that sleep is good for your brain? Einstein sure did, he slept for 10 hours a day!",  
        "__v": 0
    }

but My find one code returns no article found, even though the article is present

collection modal


    const articleSchema =  {
        title: String,
        content: String
    };
    
    const Article = mongoose.model("Article", articleSchema);

CodePudding user response：

after trying different solution I finally got to solve the issue by adding a _id: string in the schema solves the issue

    const articleSchema =  {
        _id: String,
        title: String,
        content: String
    };

rest of the code will remain the same